Priotrochus Obscurus Obscurus
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''Priotrochus'' is a
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...
s, marine
gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...
mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000  extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...
s in the subfamily
Cantharidinae The Cantharidinae are a Taxonomy (biology), taxonomic subfamily (biology), subfamily of very small to large sea snails, Marine (ocean), marine gastropod molluscs in the family Trochidae, common name top snails.Bouchet, P.; Gofas, S. (2011). Canth ...
of the
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Trochidae The Trochidae, common name top-snails or top-shells, are a family of various sized sea snails, marine gastropod molluscs in the subclass Vetigastropoda. This family is commonly known as the top-snails because in many species the shell resembles ...
, the top snails.Bouchet, P. (2012). Priotrochus P. Fischer, 1879. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=512286 on 2012-06-21


Description

The shell has an elevated-conic shape. The
columella Lucius Junius Moderatus Columella (, Arabic: ) was a prominent Roman writer on agriculture in the Roman Empire. His in twelve volumes has been completely preserved and forms an important source on Roman agriculture and ancient Roman cuisin ...
is crenulate, not toothed. The
umbilicus Umbilicus may refer to: *The navel or belly button *Umbilicus (mollusc), a feature of gastropod, Nautilus and Ammonite shell anatomy *Umbilicus (plant), ''Umbilicus'' (plant), a genus of over ninety species of perennial flowering plants *Umbilicus ...
is narrow without spiral funicle.Tryon (1889), Manual of Conchology XI, Academy of Natural Sciences, Philadelphia
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Species

Species within the genus ''Priotrochus'' include: * '' Priotrochus aniesae'' Moolenbeek & Dekker, 1992 * '' Priotrochus goudoti'' (Fischer, 1878) * '' Priotrochus iris'' Herbert, 1988 * '' Priotrochus obscurus'' (W. Wood, 1828) ;Species brought into synonymy: * ''Priotrochus alexandri'' Tomlin, 1926: synonym of ''Priotrochus obscurus ponsonbyi'' (G. B. Sowerby, 1888) * ''Priotrochus chrysolaemus'' (Martens, 1880): synonym of ''Priotrochus goudoti'' (Fischer, 1878) * ''Priotrochus incertus'' Schepman, 1908: synonym of ''
Tibatrochus incertus ''Tibatrochus incertus'' is a species of sea snail, a marine gastropod mollusk in the family Eucyclidae.Bouchet, P. (2012). ''Tibatrochus incertus'' (Schepman, 1908). Retrieved through: World Register of Marine Species at http://www.marinespeci ...
'' (Schepman, 1908) * ''Priotrochus kotschyi'' (Philippi, 1849): synonym of '' Trochus kotschyi'' Philippi, 1849 * ''Priotrochus sepulchralis'' Melvill, 1899: synonym of ''Priotrochus obscurus obscurus'' (Wood, 1828)


References

* Herbert D.G. (1988). ''A new species of Priotrochus (Mollusca: Gastropoda: Trochidae) from south-east Africa''. Annals of the Natal Museum 29(2):503-507. {{Taxonbar, from=Q7245528 Trochidae Gastropod genera